Power Controller for Recreational Vehicles and Travel Trailers and Method for Use of Same

• US 20120104846A1
• Filed: 10/27/2011
• Published: 05/03/2012
• Est. Priority Date: 10/27/2010
• Status: Active Grant

• Current Assignee: Hurst Brothers Company, Inc.
• Original Assignee: Hurst Brothers Company, Inc.
• Inventors: Hurst, Jack, Hurst, Terry
• Granted Patent: US 8,624,428 B2
• Time in Patent Office: Days
• US Class Current: 307/10.1
• CPC Class Codes: B60L 3/0069 relating to the isolation, e.g. ground fault or leak current

Abstract

A power controller for electrically connecting recreational vehicles and travel trailers to a power pedestal including a primary circuit and a Ground Fault Circuit Interrupter (GFCI) circuit, and a method for use of the same are disclosed. In one embodiment, the power controller includes an electrical housing configured to be installed in a mobile vehicle. A relay switch located within the power controller operates under the direction of a control circuit and, depending on the load conditions, is configured to switch between (i) a first circuit configuration that delivers power from a first electrical input to a first electrical output, and (ii) a second circuit configuration that delivers power from the first electrical input to the first electrical output and, in isolation, from the second electrical input to the second electrical output.

Claims

1. A power controller for electrically connecting recreational vehicles and travel trailers to a power pedestal including a primary circuit and a Ground Fault Circuit Interrupter (GFCI) circuit, the power controller comprising:

an electrical housing configured to be installed in a mobile vehicle;

a first electrical input for receiving a first electrical connection from the primary circuit;

a second electrical input for receiving a second electrical connection from the GFCI circuit;

a first electrical output configured to provide power to a first appliance;

a second electrical output configured to provide power to a second appliance;

a relay switch configured to switch between (i) a first circuit configuration that delivers power from the first electrical input to the first electrical output, and (ii) a second circuit configuration that delivers power from the first electrical input to the first electrical output and, in isolation, from the second electrical input to the second electrical output; and

a control circuit configured to control the relay switch such that (i) the relay switch switches to the first circuit configuration when no load is coupled to the second electrical output, and (ii) the relay switch switches to the second circuit configuration when a load is coupled to the second electrical output.

2. The power controller as recited in claim 1, wherein the mobile vehicle is selected from the group consisting of RVs and travel trailers.

3. The power controller as recited in claim 1, wherein the first appliance is selected from the group consisting of air conditioners, refrigerators, microwaves, dishwashers, and coffee pots.

4. The power controller as recited in claim 1, wherein the second appliance is selected from the group consisting of air conditions, refrigerators, microwaves, dishwashers, and coffee pots.

5. The power controller as recited in claim 1, wherein the primary circuit comprises a 30 A circuit.

6. The power controller as recited in claim 1, wherein the primary circuit comprises a 50 A circuit.

7. The power controller as recited in claim 1, wherein the GFCI circuit comprises a 20 A-GFCI circuit.

8. The power controller as recited in claim 1, further comprising a ground bar.

9. The power controller as recited in claim 1, wherein the control circuit comprises a solid state microchip circuit.

10. A power controller for electrically connecting recreational vehicles and travel trailers to a power pedestal including a primary circuit and a Ground Fault Circuit Interrupter (GFCI) circuit, the power controller comprising:

an electrical housing configured to be installed in a mobile vehicle;

a first electrical input for receiving a first electrical connection from the primary circuit, the first electrical input configured to provide electrical connectivity to a power cord having a male plug adapted to plug into a female outlet of the power pedestal;

the first electrical input including a plurality of wires configured to electrically couple to a breaker panel of the mobile vehicle;

a second electrical input for receiving a second electrical connection from the GFCI circuit, the second electrical input including a power cord having a male plug adapted to plug into a female outlet of the power pedestal;

a first electrical output configured to provide power to a first appliance via the breaker panel of the mobile vehicle;

a second electrical output configured to provide power to a second appliance via an isolation circuit within the mobile vehicle;

a relay switch configured to switch between (i) a first circuit configuration that delivers power from the first electrical input to the first electrical output, and (ii) a second circuit configuration that delivers power from the first electrical input to the first electrical output and, in isolation, from the second electrical input to the second electrical output; and

a control circuit configured to control the relay switch such that (i) the relay switch switches to the first circuit configuration when no load is coupled to the second electrical output, and (ii) the relay switch switches to the second circuit configuration when a load is coupled to the second electrical output.

11. The power controller as recited in claim 10, wherein the mobile vehicle is selected from the group consisting of RVs and travel trailers.

12. The power controller as recited in claim 10, wherein the first appliance is selected from the group consisting of air conditioners, refrigerators, microwaves, dishwashers, and coffee pots.

13. The power controller as recited in claim 10, wherein the second appliance is selected from the group consisting of air conditions, refrigerators, microwaves, dishwashers, and coffee pots.

14. A power controller for electrically connecting recreational vehicles and travel trailers to a power pedestal including a primary circuit and a Ground Fault Circuit Interrupter (GFCI) circuit, the power controller comprising:

an electrical housing configured to be installed in a mobile vehicle;

a first electrical input for receiving a first electrical connection from the primary circuit, the first electrical input configured to provide electrical connectivity to a power cord having a male plug adapted to plug into a female outlet of the power pedestal;

the first electrical input configured to interface with the primary circuit which is selected from the group consisting of 30 A circuits and 50 A circuits;

the first electrical input including a plurality of wires configured to electrically couple to a breaker panel of the mobile vehicle;

a second electrical input for receiving a second electrical connection from the GFCI circuit, the second electrical input including a power cord having a male plug adapted to plug into a female outlet of the power pedestal;

the second electrical input configured to interface with a 20 A-GFCI circuit;

a first electrical output configured to provide power to a first appliance via the breaker panel of the mobile vehicle, the first appliance selected from the group consisting of air conditions, refrigerators, microwaves, dishwashers, and coffee pots;

a second electrical output configured to provide power to a second appliance via an isolation circuit within the mobile vehicle;

a relay switch configured to switch between (i) a first circuit configuration that delivers power from the first electrical input to the first electrical output, and (ii) a second circuit configuration that delivers power from the first electrical input to the first electrical output and, in isolation, from the second electrical input to the second electrical output; and

a control circuit configured to control the relay switch such that (i) the relay switch switches to the first circuit configuration when no load is coupled to the second electrical output, and (ii) the relay switch switches to the second circuit configuration when a load is coupled to the second electrical output.

15. A power controller for electrically connecting recreational vehicles and travel trailers to a power pedestal including a primary circuit and a Ground Fault Circuit Interrupter (GFCI) circuit, the power controller comprising:

an electrical housing configured to be installed in a mobile vehicle;

a first electrical input for receiving a first electrical connection from the primary circuit, the first electrical input configured to provide electrical connectivity to a power cord having a male plug adapted to plug into a female outlet of the power pedestal;

the first electrical input including a plurality of wires configured to electrically couple to a breaker panel of the mobile vehicle;

a second electrical input for receiving a second electrical connection from the GFCI circuit, the second electrical input including a power cord having a male plug adapted to plug into a female outlet of the power pedestal;

a first electrical output configured to provide power to a first appliance via the breaker panel of the mobile vehicle;

a second electrical output configured to provide power to a second appliance via an isolation circuit within the mobile vehicle;

relay means for switching between (i) a first circuit configuration that delivers power from the first electrical input to the first electrical output, and (ii) a second circuit configuration that delivers power from the first electrical input to the first electrical output and, in isolation, from the second electrical input to the second electrical output; and

a control circuit configured to control the relay means such that (i) switching to the first circuit configuration is effected when no load is coupled to the second electrical output, and (ii) switching to the second circuit configuration is effected when a load is coupled to the second electrical output.

16. The power controller as recited in claim 15, wherein the mobile vehicle is selected from the group consisting of RVs and travel trailers.

17. The power controller as recited in claim 15, wherein the first appliance is selected from the group consisting of air conditioners, refrigerators, microwaves, dishwashers, and coffee pots.

18. The power controller as recited in claim 15, wherein the second appliance is selected from the group consisting of air conditions, refrigerators, microwaves, dishwashers, and coffee pots.

19. A method for controlling the power supply received by recreational vehicles and travel trailers at a power pedestal including a primary circuit and a Ground Fault Circuit Interrupter (GFCI) circuit, the method comprising:

installing a power controller in a mobile vehicle, the mobile vehicle being selected from the group consisting of recreational vehicles and travel trailers, the power controller including;

(i) an electrical housing, (ii) a first electrical input for receiving a first electrical connection from the primary circuit, the first electrical input configured to provide electrical connectivity to a power cord having a male plug adapted to plug into a female outlet of the power pedestal, (iii) a second electrical input for receiving a second electrical connection from the GFCI circuit, the second electrical input including a power cord having a male plug adapted to plug into a female outlet of the power pedestal, (iv) a first electrical output configured to provide power to a first appliance via the breaker panel of the mobile vehicle, and (v) a second electrical output configured to provide power to a second appliance via an isolation circuit within the mobile vehicle;

electrically coupling the first electrical input with a plurality of wires to a breaker panel of the mobile vehicle;

plugging two power cords into the power pedestal, the two power cords respectively corresponding to the primary circuit and the Ground Fault Circuit Interrupter (GFCI) circuit;

switching with a relay switch between (i) a first circuit configuration that delivers power from the first electrical input to the first electrical output, and (ii) a second circuit configuration that delivers power from the first electrical input to the first electrical output and, in isolation, from the second electrical input to the second electrical output; and

controlling the relay switch with a control circuit such that (i) the relay switch switches to the first circuit configuration when no load is coupled to the second electrical output, and (ii) the relay switch switches to the second circuit configuration when a load is coupled to the second electrical output.

20. The method as recited in claim 20, further comprising selecting the first appliance from the group consisting of air conditioners, refrigerators, microwaves, dishwashers, and coffee pots.

21. The method as recited in claim 20, further comprising selecting the second appliance from the group consisting of air conditioners, refrigerators, microwaves, dishwashers, and coffee pots.